Colo. Rev. Stat. § 38-36-148
The owner of registered land may convey, mortgage, lease, charge, or otherwise encumber, dispose of, or deal with the same as fully as if it had not been registered. He may use forms of deeds, trust deeds, mortgages, and leases or voluntary instruments like those now in use and sufficient in law for the purpose intended. But no voluntary instrument of conveyance, except a will and a lease for a term not exceeding three years, purporting to convey or affect registered land, shall take effect as a conveyance or bind the land but shall operate only as a contract between the parties and as evidence of the authority to the registrar of titles to make registration. The act of registration shall be the operative act to convey or affect the land.
C.R.S. § 38-36-148